From: Guo Zhengkui <guozhengkui@xxxxxxxx> Subject: userfaultfd/selftests: fix uninitialized_var.cocci warning Fix following coccicheck warning: tools/testing/selftests/vm/userfaultfd.c:556:23-24: WARNING this kind of initialization is deprecated `unsigned long page_nr = *(&page_nr)` has the same form of uninitialized_var() macro. I remove the redundant assignement. It has been tested with gcc (Debian 8.3.0-6) 8.3.0. The patch which removed uninitialized_var() is: https://lore.kernel.org/all/20121028102007.GA7547@xxxxxxxxx/ And there is very few "/* GCC */" comments in the Linux kernel code now. Link: https://lkml.kernel.org/r/20220304082333.9252-1-guozhengkui@xxxxxxxx Signed-off-by: Guo Zhengkui <guozhengkui@xxxxxxxx> Cc: Shuah Khan <shuah@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/vm/userfaultfd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/tools/testing/selftests/vm/userfaultfd.c~userfaultfd-selftests-fix-uninitialized_varcocci-warning +++ a/tools/testing/selftests/vm/userfaultfd.c @@ -540,7 +540,7 @@ static void continue_range(int ufd, __u6 static void *locking_thread(void *arg) { unsigned long cpu = (unsigned long) arg; - unsigned long page_nr = *(&(page_nr)); /* uninitialized warning */ + unsigned long page_nr; unsigned long long count; if (!(bounces & BOUNCE_RANDOM)) { _
